| Hosta | Cosmic Fun |
| Status | registered |
| Originator(s) | Rod Kuenster 2021 |
| Origin | (('Giantland Thor' x 'Cosmic Knuckles') x 'Niagara Falls') |
| Size category | |
| Plant height x width | 69x102 cm (27x40 in.) |
| Leaf length x width | 29x24 cm (11x9 in.) |
| Vein pairs | 11-13 |
| Leaf color | |
| Variegation | |
| Leaf | |
| Petiole | |
| Scape | green |
| Scape height | 76 cm (30 in.) |
| Flower | |
| Flower length | |
| Fragrant | |
| Flowering period | |
| Fertile | |
| Pod | |
| Ploidy | |
| Patents | |
| Info | Very corrugated and unruly plant. |
| Sports | |
| Progeny | |